adaptoids?

i know i know adaptoids are practically dead and almost impossible to find. but just in case im going to ask. does anyone know where to find the original adaptoids?

since no one probably does next im going to ask about the gc/n64 to usb adptr on raphnet.
the one where u make it yourself.
can anyone confirm quality here?
also can it use them adaptoid plugin for pj64 or do i have to find another?
also, also the guide to make it says that the chip to make your own adptr can be put inside the ctrlr instead of a wire. instructions?